Metal-tube-cutting machine.



PATENTED SEPT. 8, 11903. T. L. CARBONE. METAL TUBE CUTTING MACHINE. APPLICATION FILED APR. 1, 1903.

' 3 SHEETS-SHEET 1" No NOBEL.

PATENTBD SEPT. a, 1963.

T. L. CARBONE. METAL TUBE CUTTING MACHINE.

APPLICATION FILED APR. 1, 1903.

3 SHEETS-SHEET 2.

N0 MODEL.

E au

Mn asses PATENTBD SEPTT 8, 1903r T. L. CARBGNE.

METAL TUBE CUTTINGMAGHINE.

APPLICATION FILED APRLI, 1903 3 SHEETS-SHEET 3.

110 MODEL.

Nt. 'realice latented nSeptember 8, 196.31

UNITED STATES PATENT OFFICE.`

TITO L. CARBONE, OF BERLIN, GERMANY, ASSIGNOR OF TIfIIRTY-ONE SlXTIETI-IS TO HEINRICH WOLLHEIM, OF BERLIN, GERMANY.

' METAL-TUBE-CUTTINVG MACHINE.

SFECIFICATION forming part of Letters Patent No. 738,409, dated September 8, 1903.

Application filed April l, 1903. Serial No. 1150,536. (No modeld To all whom t may concern..-

Be it known that I, TITO Livio CARBONE, a civil engineer, a subject of the King of Italy, residing at No. lOl-102 Leipzigerstrasse, Berlin, in the Kingdom of Prussia, German Empire, have invented a certain new and Improved Machine for Cutting Sheet Metal Tubes into -lieccs, of which the following is a specilication.

This invention relates to amachine by which tubes manufactured from sheet metal may be cut into pieces adapted to bensed for the manufacture of fiat or tall cans, such as employed for canned vegetables or the like-for instance, sardines or shadinels.

My invention consists in certain combina tions and arrangements of parts, as are fully described hereinafter.

In 4order to make my invention clearly understood, I refer to the accompanying drawings, in which similar figures denote similar parts throughout the several views, andv in which- Figures l and l" represent a front view of the machine divided on the line O D, a portion of the intermediate right-hand part of the same, as shown in Fig. l, being broken away for want of space. Figs. 2 and 2 represent a plan of the machine divided on the line A B and with certain intermediate parts broken away. Fig. 3 is a vertical cross-section on the line S 9 of Fig. 2, and Figs. 4E, 5, 6, and 7 are details which will be fully referred to hereinafter.

The dotted lines i5, Figs. ll and 3, indicate a portion of the tube which is to be cut into pieces. The front end of the tube 4:5 rests in a rotary body 29, and the rear end of the tube is held by a similar body 32, Figs. l, 2, and 4t. The connection of the tube with said rotary bodiesis such that the tube maybe moved longitudinally, together with the said two bodies, and may also be moved vertically with regard to the rotary body 29. This displacement of the tube with regard to or within the rotary body 2f) is brought about by the rotary body 32, which has pawls 3l engaging the rear edge proper of said tube.

The rotary body 29 is held by and within a bearing 27, Figs. l and 2n, and the rotary body 32 is heid by and within a bearing 3l.

These bearings are carried by slides 27 and 3l, adapted to be displaced in suitable guides of the table 43 of the machine. The slide 2, with the bearing 27 and the rotary body 29, is moved to and fro for equal distances, whereas the slide 3l makes two steps forward and one back, this kind of movement being thus similar to the so-called pilgrim step. The back movement-i. c., the movement to the right with respect to Figs. l and 2- occurs at the saine time, and the extent of this movement is such that a space is left between the front-t'. c., the left-hand-end of the tube 45 and the device by means of which this tube cut into pieces. The space serves for removing the cut-olf pieces of tube from the cutting deviceet'. e., for letting said pieces pass out of the machineas will be more fully described hereinafter. The movement of the two slides to the left commences also at the same time; but when the slide 27 has attained the end of its path the slide 3l proceeds farther forward until the left-hand end of the tube 45 has been shoved over the cutting device. The mechanisms for producing these movements are constructed as follows: The slide 27 is rigidly connected with a bar 20, Figs. l and 4:, adapted to be longitudinally displaced. This bar extends nearly the'whole length of the table, and is near to the left -hand end of the table provided with a fork 6l. (Indicated in Fig. l by dotted lines.) Said fork takes into a groove of a box G2, so that when the bar 2O is moved to and fro the box 62 is also moved in the same directions and to the same extent. The purpose of the box 62 will be described hereinafter. The bar 2O contains in its upper surface a groove, and said groove contains a rope 2l, Figs. l, 2, and 4f, which is subjected to the draft of a weight 58. The rope 2l passes, as vseen in Fig. l, over rolls, a portion of which is connected with that weight, whereas the other portion is located in the table 43 of the machine. Where these rolls-i. e., the upper ones-are located in said table, the groove of the bar 2O is formed into a slot through which the rolls, with the rope, can pass. The length of said slot is such that the longitudinal displacement of the bar 2O is not impeded thereby. The draft of the IDO weight 58 is transmitted by the rope 21 to the slide 31, thus tending to move the latter to the left. Thus the weight 58 constitutes the force by which the tube 45 is displaced to the left by the mediation of the pawls 34 of the rotary body 32 and the bearing 31. When, however, the tube is moved to the right the slide 31a is also moved, and the weight 5S is thus raised 4for a corresponding distance. To move the slide 31L to the right, a longitudinally-displaceable bar 30, Figs. 1 and 2, is provided, which is located at the side of the bar 20. The bar 30 is subjected to the action of a spring 30a, Fig. 2, the strength of which issuch that itis just capableY of displacing the said bar to the left'. The two bars 20 and 3() are connected at places by links 30D, one of which is indicated by dotted lines in Fig. 2n. This connection is such that when the bar 20 is moved to the right the distance between this bar and the bar 30 is somewhat increased, so that the bar 30 is moved,7 so to say, laterally with respect to the bar 20. The result of this movement is that the slide 3l:L is jammed by the two bars in question in such a manner that on the further movement of the bar 2O to the right also the slide 31n is moved to the right, when at the same time the spring 30a will be compressed. Now when the bar 2O is moved again to the left, also the bar 30 is moved to the left; but at the same time the jamming action is ended, and from the same moment the slide 31 is again subjected solely to the draft of the weight 58, so that the tube 45 is now displaced by the bearing 31 and the rotary body 32 to the left, so as again to be shoved over the cutting device.

The main part of this device consists of a rotary head constructed of a number of segments 2 and 2, Figs. 5 and 6, of which the segments 2 are located between the segments 2a. l AAll the segments are adjustably related to each other in such a way that after the tube 45 has been shoved over them they may be displaced radially outward, so as to be pressed against and supportthe inner surfaceA of the tube. This expansion of the cutting-head is attained by a truncated cone 1, Fig. 5, secured to the right-hand end of a rod 1, Figs. 2 and 5 to 7. This rod may be displaced in a sleeve 8. The right-hand end of the sleeve forms a truncated cone St. The segments 2 of the cuttinghead are carried by the said two truncated cones, as well as bythe segments 2a, the cones carrying the segment or segments, which are on the upper half of the head, whereas the other segment or segments 2 are carried by the segments 2n. Each of the segments 2fL is provided at its inner surface withl a groove 2b, into which takes a radially-extending follower of the rodA '1, and in front of as well as behind each follower are springs, Fig. 5, tending to draw the segments 2L in the direction of the rod 1, so that by this means the proper coherence of all the movable parts of the cutting-head is maintained. The cuttinghead is rotated by means which willv be hereinafter described. Vhen the rod 1 has been drawn to the left, so that the truncated cone 1n has pressed the segments 2 and 2 against the inner surface of the tube 45, this tube is compelled to partake of the rotation, and consequently also the rotary bodies 29 and 32 are caused to rotate in their bearings 27 and 31.

Integrally with the sleeve 3 is provided, at the left-hand side of the cutting-head, arotary body 3, Figs. 1 and 2, through which pass a number of parallel rods 6, the purpose of which is Ytdpush the cut-offV piece ofttube away and down from the cutting-head. One part of the body 3 forms thus a guide for said rods 6; but the other part forms a guideway for a roll 37, Fig. 1, attached to a slide 39, Figs. 1 and This slide is adapted to reciprocate vertically in a standard 40, secured to the table 43 of the machine. The slide 39 is supported, through the mediation of the roll 37, by the rotary body 3, which is constantly rotated together with the rod 1. It is a matter of course that the section of the cuttinghead must correspond to the section of the tube 45. The section of this tube is not in every case circular; but there exists also quadrangular tubes with rounded off corners or edges, such tubes being required for the manufacture of flat cans as used for sardines and the like. The section of` the body 3 must be congruent to the section of the cuttinghead.

In the form of construction shown the machine is intended for the cutting into pieces of tubes of circular section, and thus also the section of the body 3 is a circular one. In case the section of the cutting-head would be such as necessary for flat cans the body 3 would also be correspondingly shaped, and owing thereto the roll 37, and thus the slide 39, would be raised and lowered to such an extent that the rotary 'cutting-knife 36, Fig. l, could act on each part of the periphery of the tube. The rotary knife 36 is connected with a roller 35, carried by the slide 39. When the tube 45 is rotated, the roller 35 is also rotated by the friction arising between it and the tube, and the knife 36 cuts through the Wall ofthe tube until it finally enters a groove 2C, Fig. 5, provided in the rotary headi. e., in the segments 2 and 22 During this time the roller 35 has pressed the main part of the cut-oif piece of tube into a shallow cavity eX- tending'around the rotary head, (see Fig. 5,) so that the ends of the piece of tube are provided with anges adapted to receive the bottom and the lid. W'hen the piece of tube has been thus far worked, the tube 45 is moved to the right, as already described, and at the same time also the rod 1 is displaced to the right, so that the truncated cone l does not exert any more a pressure upon the segments 2 and 2fL of the cutting-head. Therefore the springs provided within the cutting-head and acting upon the segments 2a can. draw these IFS ITO

segments inward, so that consequently the segments 2 are also moved off the inner surface of the cut-olf piece of tube still held by the cutting-head. Vhile this occurs, also the slide 39 has been somewhat raised, so that also the parts 35, 36, and 37 have been lifted off the parts 3, 2, and 2. To raise these parts 35, 36, and 37, the slide 39 is suspended by means of a link 69, Fig. 3,'fro1n a lever 68, secured to a shaft 67h. The other end of this shaft is provided with an arm 67, which is connected by a rod 67 with one arm of a double-armed lever 66,'having at its other arm an upwardly-extending bar 65, the ,upper end of which is provided with a roller This roller is acted on by a cam Glasecured to a horizontal shaft 63, extending parallel to the sleeve'S. The extent of the downward movement of the slide 39 may be adjusted by a screw 66a, provided in the lever 66. While the parts 35, 36, and 37 are raised by the means just described, the rods 6, Figs. l and 2, are moved to the right, so that they push the piece of tube off the cuttingdiead. The tube 45 havingbeen already displaced to the right prior thereto, there is now a space between the left-hand end of this tube and the cutting-head through which the cut-off piece of tube may be thrown out of the machine. The rods 6 are fixed to a disk 5, Figs. l and 2, secured to the sleeve S. This disk is connected by rods 10 with the boX 62. This is the box into the peripheral groove of which takes from below the fork 61, already mentioned. Into the upper portion of this groove takes a fork 6l, Fig. l, connected with a lever 61h. by a rod with a bell-crank lever 7l and through the mediation of this with a pushbar 72, acted on by a cam 73, also secured to the shaft 63, which carries the cam 64. There is, further, on the shaft 63, a drum 74, having a peripheral groove adapted to reciprocate a lever 75. This is the lever by means of which the rod l, with its truncated cone l, is moved to and fro. The left-hand end of the'rod l is connected by means of a pin lc with a ring 8b, taking around the sleeve S. The latter has on diametrically opposite'sides short slots Sd, within which the p in lc may be vertically displaced. The ring 8b has a peripheral groove into which takes a fork 8, secured to the rear arm of the double-armed lever 75. Thus the sleeve 8 and the rod l may be longitudinally displaced to and fro within the sleeve. It is a matter of course that the rod l is displaced to the right only after the tube 45 has made one rotation, so that a piece of the tube has been cutoff. The slide 39 is then raised, and immediately thereafter the rods 6 are moved to the right, so that the cut-ott1 piece of tube is removed.

The cutting-head and the rotary body 3 are preferably arranged and connected with the sleeve 8 in such a manner vthat they may be removed and exchanged for another cuttinghead and another rotary body suited for the This lever in its turn is connected` cutting into pieces of a tube of another section. It is further a matter of course that the extent of movement of the rods 6 must be adjustable with respect to the length of the pieces of tube cut off, because oneand the same machine is intended for the manufacture of tall cans as well as short ones. For this reason the push-bar 72 is provided with a screw 7 2, bearing against a stationary part of the machine. The push-bar 72 may be adjusted by this screw in such a manner that a certain distance is left between this bar and the cam 73 after the latter has passed through a certain angle of its path. In the same measure as the push-bar 72 is moved away from the cam 73 by the screw 7 2, also -the parts 7l, 70, 61, l0, 5, and 6 are moved,

so that consequently the distance between the cutting-knife 36 and the acting ends of the rods 6 is correspondingly decreased.

To rotate the shaft 63 and the sleeve 8 with its rod 1, the main shaft 8O ofthe machine is furnished with a cog-wheel Sl, gearing with a cog-wheel S2, keyed to the sleeve 8. At the side of the cog-wheel S2 is a cog-wheel 83, also keyed to the sleeve S. Thisy cog-wheel gears with a cog-whcel S4, keyed to the shaft 63, the diameter of all the cog-wheels being, of course, such that the differences in speed necessary for the proper working of the machine are obtained.

Having now described the nature of my invention, what I desire to secure by Letter Iatent of the United States isl. In a tube-cutting machine, the combination, with a tube-carrier, of means for moving the tube forward, means for moving the tube backward, and a cutting device adaptedto cut a piece of tube oif after each forward movement of said tube.

2. In a tube-cutting machine, the combina; tion, with a movable tube-carrier, of means for moving said carrier with the tube alter nately forward and backward, and a cutting device adapted to cut a piece of tube off after each forward movement of said tube.

3. In a tube-cutting'machiue, the combination, with a tube-carrier, of means forI moving the tube axially one step backward and two steps forward, and a cutting device adapted to cut a piece of tube off after each forward movement of said tube.

4. In a tube-cutting machine, the combination, with a tube-carrier of means for moving` ,the tube alternately backward and forward unequal distances, a cutting device adapted to cut a piece of tube off after each forward movement of said tube, and means for removing said cut-off piece.

5. In a tube-cutting machine, the combination, with a stationary cutting device, of means for feeding the tube longitudinally to said device, rotating it so as to' cause the said4 device to cut oif a piece ofrtube, and moving the uncut tube back so far that the cut-off piece may be removed from the cutting deV vice, and means for effecting said removal.

IOO

IXO

6. Ina tube-cutting machine, the combination, with a cutting device, of movable tubecarriers, means for reciprocating the tube-carriers simultaneously but unequally in such manner as to alternately move the tube into operative relation to the cutting device and to retract the same therefrom, and means for causing the cutting device to sever a piece of tube.

7. In a tube-cutting machine, the combination, with a stationary cutting device, of two movable tube-carriers, means for reciprocating that next to said device for equal distances, and for moving the other as far backward but twice so much forward, means for rotating the tube after each forward movement so as to cause the said cutting device to cut off a piece of tube, and means for removing said cut-off piece afterthe two carriers have been withdrawn.

8. In a tube-cutting machine, the combination, with a cutting device, of an expansible cutting-head composed of cooperating dissimilar segments adapted to enter the tube and to press against the inner surface of the same, means for moving the tube onto said cuttinghead and for withdrawingit after the cut has been made, means forl expanding the cuttinghead, and means consisting of springs for contracting the same.

9. In a tube-cutting machine, the combination, with a stationary cutting device, of rotary expansible cutting-head composed of cooperating dissimilar segments adapted to enter the tube, and to press afterward against the inner surface of the same, means for moving the tube onto said cutting-head and for withdrawing it after the cut has been made.

10. In a tube-cutting machine, the combina tion, with a stationary cutting device, of a rotary expansible cutting-head composed of radially-movable segments, means consisting of relatively movable cones for moving said segments radially outward, after the tube has been moved over the contracted segments and means for effecting this movement.

ll. In a tube-cuttingmachine, the combination, with a cutting device, of an expansible cutting-head composed of radially-movable segments, means for moving said segments outward after the tube has been placed over the contracted segments, movable tube-carriers, means for reciprocating the tube-carriers simultaneously but unequally in such manner as to feed the tube to the cutting device and to withdraw the same therefrom.

l2. In a tube-cutting machine, the combination, with a stationary cutting device, of a rotary expansible cutting-head composed of radially-movable segments, means for moving said segments radially outward after the tube has been moved over the contracted segments, two movable tube-carriers, means for reciprocating that next to said cutting-head for -equal distances and for moving the other as far back but twice so much forward so as to carry the tube over the said cutting-head.

13. In a tube-cutting machine, the combination, with a stationary cutting device, of two movable tube-carriers consisting each of a slide adapted to reciprocate in guideways of the machine-table, a bearing supported by said slide, and a rotary body located in said bearing and embracing the tube, means for reciprocating the tube-carrier next to said cutting device for equal distances and for moving the other as far back but twice so much forward so as to carry the tube over the said cutting-head.

14. In a tube-cutting machine, the combination,A with a cutting device, of movable tubecarriers, a longitudinallydisplaceable barconnected with the tube-carrier nearest said cutting device, a member connected with the other tube-carrier, a weight exerting tension upon said member, aV cutting-head, means for moving said bar to and fro for equal distances, and means for causing said bar to carry said other tube-carrier with it on its backward movement and for releasing it at the end of that movement.

l5. In a tube-cutting machine, the combination, with a stationary cutting device, of two movable tube-carriers, a longitudinally-displaceable bar connected with the tube-carrier next to said cutting device, a pliable member connected with the other tube-carrier,a weight putting said member under tension, a rotary cutting-head and means for rotating the same intermittently, means for moving said bar to and fro for equal distances, and means for causing the said bar to take said other tubecarrier with it on its back movement and for releasing it at the end of that movement.

16. ln atuhc-cutting machine, the combination, with a cutting device, of movable tubecarriers, a longitudinally displaceable bar connected with the tube-carrier nearest said cutting device, a pliable member connected with the other tube-carrier, a Weight adapted to exert tension upon said member, another bar arranged parallel to the first and adapted t0 be alternately displaced, links connecting the said bars with each other, means for moving the iirs-t bar to and fro for equal distances, a second bar being adapted to take the said other tube-carrier with it on the backward movement, and means for releasing the said other carrier from said second bar at the end of said movement.

17. Inatube-cutting machine, the combination, with a stationary cutting device, of two movable tube-carriers, a longitudinally-displaceable bar connected with the tube-carrier next to said cutting device, a pliable member connected with the other tube carrier, a weight putting said member under tension, another bar arranged parallel to the first and adapted to be laterally displaced, links connecting said bars with each other, a rotary cutting-head, means for rotating the same intermittently, means for moving the iirst bar to and fro for equal distances, the second bar being adapted to take the said other tube- IOS IIO

carrier with it on the back movement, and means for releasing the said other carrier from said second bar at the end of said mover ment.

I8. In a tubeGuttingmachine, the combination, with a stationary cutting device, of a rotary expansible cutting-head composed of radially-movable segments, alongitudinallydisplaceable bar reaching` into said cuttinghead, a cone attached tosaid bar and adapted to move said segments outward, two movable tube-carriers, and means for reciprocating.

that next to said cutting-head for equal distances and for moving, the other as far back but twice so much forward so as to carry the tube over the said cutting-head.

19. In a tube-cutting machin e, the combination, with a stationary cutting device, a vertically-movable slide having said device attached to it, a rotary cutting-head located below` the said device, a rotary guide-body connected with said cuttingehead, a roll connected with said slide and bearing upon said `@guide-body, two movable tube-carriers, and

means for reciprocating that next to said cutting-head for equal distances and for moving the other as far back but twice so much forward so as to carry the tube over the said cutting-heath 20. In a tube-cutting` machine the combina tion, with a stationary cutting device, of two movable tube-carriers, means for reciprocating` that next to said device for equal distances, and for moving,r the other as far backward but twice so much forward, means for 

